Bolster guide and damper.



W. S.. ADAMS. Y

HOLSTER GUIDE AND DAMPER.

APPLICATION FILED JUNE 2.19I4.

l @55%@50 Patentml Apr. 13, 1915.

2 SHEETS-SHEET 1.

EN i, I if W. S. ADAMS.

HOLSTER GUIDE AND DAIVIPEH.

APPLICATION FILED JUNE 2, 1914.

Patented M1113, 1915.

2 SHEETS-SHEET 2.

WALTER S. ADAMS, F PHILAlDlELPHlI, PENNSYLVANIA, ASSIG'NOR T0 THE J'. Gr. BRILIi COMPANY, 0F PHLADlELPIll-IIN, l PENNSYLVANIA, A CORIPORATION OF PENNSYL- MANIA.

noteren euinn ann nnivirnn.V

Specification of LetterslPatent. .Patented Apu', lig, 119915.

nppiicauon mea .rune a, 1914i. serial no. atacan.

and Dampers, of which the following is a specification. c

rllhe object of my inventionis to provide a device of this class whichwill eliminate the necessity of using chafing plates between a truck bolster and the truck transoms, and

to provide a means which will prrevent the nate similar parts.

bolster'from excessive swinging on its supporting links in the direction of its length and transversely ofthe truck, but which will not prevent it from moving from one posh tion to another, as may be required by the conditions of service. At the present time, holsters frequently swing too freely, so that the car body which is supported by them is subject to unnecessary transverse vibration. All such vibrations are overcome by my invention, one embodiment of which will be hereinafter more particularly seteforth.

For a more particular description of my invention, reference is to be had to the accompanying drawing, forming a part hereof, in which- Figure 1 is 'a plan view of a structure embodying my' invention; Fig. 2 is a side elel vation of the same; Fig. 3 is a sectional view on the line 3 3 of Fig. 1, looking in the direction of the arrows; and Fig. d is a sectional view on the line l-t of Fig. l, loolging in the direction of the arrows.

Throughout the various views of the drawings, similar reference characters desig- 'llhecar truck tdwhilchmy invention can be a plied may be of conventional' or de- Isire rconstruction, and is provided with side frames l1, transoms 2, said transoms being secured together Aby a tie bar 3. 0 plates l valsosecure4 the transoms to the side -frame 1.` All ofthe foregoing is shown in dotted lines on the drawings. rlFhe transoms `are also connected by a bar a which is securedI` t6 saidtransoms by lbolts b. A bolster 5, shown in dbtted lines, 1s sup- I ported in any suitable way from the frame,

y [iwi `sothat 'the bolster 5 'can move, in the absence of the mechanism described below,

with the usual freedom of movement in the direction of its length. .To hold this bolster Gusset versely vof itself.

Secured to the bolster 5 4by means of bolts 8 are two bearing blocks 9,'said bearing blocks being pivoted at their upper ends on a pin 10, the inner end of said pin being reduced at l1 and threadedv for the reception of nuts 12. A coil spring 13, having seats ll is mounted on the reduced portion 11 of the pin10;. Un the interior of the bearing blocks 9 at the upper end surrounding the pin 10 are hardened steel bushings 15 to prevent wear. Extending between the two bearing blocks 9 is albar116 on top of which is mounted another bar 17 extending horizontally. Extending through said bars is a bolt 18 having a head 19 at its lower endand a reduced portion 20 -at its upper end said reduced portion being threaded for the reception of nuts 21.

Mounted on the transom 6 are blocksy 22,

" nuts 21. Extending between these two bolts u19 is a' leaf spring 26. lf desired, coil vsprings may be substituted in place of said leaf spring.

When theparts'are assembled as set forth, the nuts 12 and 21 are placed tight enough to force the respective springs under them 'into close'contact' with their adjacent parts sothat the parts 9 and 17 can move only with considerable friction, the Vamount "of dampeningof the movement of the. bolster ywill depend upon the tension which is putl upon the respective springs 11 and 26. "lFhis dampening device is, of course,'duplicatedv gli? at both ends of the bolster, or at appropriate points along the length of the bolster; and instead of having the dampening devices extending in the same direction, they may extend in directions opposite to each other.

It is clear that my invention may be otherwise embodied as here shown.

Having described my invention, what I claimis: L

1. In a car truck, a bolster, a bearing thereon, a truck'frame, a'bearing thereon, a bar extending between the said bearings and having pivotal connection therewith, a 'spring extending between the pivotal connections, and means combined with said pivotal connections for varying the tension of said spring.

2. In a truck, a bolster, bearing blocks on the bolster, a truck frame and bearing blocks thereon, cross-bars having bearings engage ing the bearing blocks, means for imposing frictional resistance on said bearings, a bar extending between said cross bars, pivots connecting the latter bar and said cross-bars,

pin, a second pinconnected to said link blocks on said frame carrying said last mentioned pin, a spring on said last mentioned pin and a spring adjacent to said link, and

means for holding said spring adjacent to said link.

4. In a truck, a frame, with a bolster mounted therein, blocks secured to said frame, a pin extending through said blocks, a spring on said pin, bearing brackets secured to the bolster, a pin in said bearing brackets, a spring on said pin, upright bolts on said pin and a spring extending from said bolt to an upright bolt on the pin in blocks secured to the frame.

5. In a car truck, a frame, a bolster within said frame, bearing blocks on said bolster, a pivotal bar connecting said bearing blocks, bearing blocks on the truck frame,a bar connecting said bearing blocks, a bar extending from said bar'and the bar connecting the bearing blocks on the bolster, upright bolts extending through said bars having heads on their lower ends, reduced portions on their upper ends, a spring extending be` tween said upright bolts and nuts for adjusting the tension of said spring.

Signed at the city of Philadelphia, county of Philadelphia, and State of Pennsylvania, this 23rd day of May, 1914.

WALTER S. ADAMS.

1Witnesses:

HENRY C. ESLING, H. F. MCKILLIP. 

